{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x51f903bb890408b9b8e6699e6f3ac69f3d87d47649e45dbacf5679b44204b905",
    "signature": "0x991f4e0442287942ff1c8edde48cbcee09cdf439640cf956ac54c467e29ac0d5308691c22edda900681c4075f90573272ce4cb2c726283481a31fd073daf69b31b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}