{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155117491",
    "entityType": "User",
    "nonce": "0x2ab0c5be70278170ce1dd7387443d4874f4cbc7f03f334de0d3bea622ada73fb",
    "signature": "0x5e299a9b40c74016120c2d6ccfe0d488891bcadc14f3a2f3091ea14b96144406217767886d207cf70e9f2e1f2c088e145b9daa4989f3c19e9398134a900f4eba1c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}