{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12890",
    "entityType": "User",
    "nonce": "0x79cfec55074fa4908719153c534aca6961082a3365374e37619fea2f2824256b",
    "signature": "0xe83dcd0eb328a7885e5d20d03fd12e85d681633841f74f45ccf9a972b88900ce7da2d46866148d72d8a7933f812cad348a0e6630e83914b4ba2986d6968636361c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}