{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74652",
    "entityType": "User",
    "nonce": "0x19d34ba653dad70f0eb34af0e777bb8405a5e63c61f4acd0c51558898ce71c84",
    "signature": "0x1619d9c1e033d089fad72637741f5b10bd34d8c33c08d0a8dfd53754eaaa643b600ee2db65e526164b703f65236ea2889881b8dfd4c05830522a5e9923fc0b5b1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}