{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863746603",
    "entityType": "User",
    "nonce": "0x4d9fbed9ef9b2953ac90a0105c82e48df726f4b852dc4cb48a440e036d14aef4",
    "signature": "0xc82e42bb7f4148b9cef0b6814a454e39bef06c2d3538513829eb96b98493c2ec678cc330fc7d94c64908c6932f8ab516a2b795e4c9ee3ebabfb70d9e698ee3c01c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}