{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10768",
    "entityType": "User",
    "nonce": "0x2ce2649b241709c784938071f55ce3c1fbb4d7f6e9ae5a4b513b0ac972dd7005",
    "signature": "0x952d5ebfcb89520b39b0fc759eea9e57c0c73de19e31ab95acc0954e3951e3e5252dec4ddb4982785f50d264fd3ca15cebebbc90aeada4fa0d2cc61a3f8865ce1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}