{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "908879704",
    "entityType": "User",
    "nonce": "0xe2a63d740b99c17b54a60ce09e47bf5f55ae376b1d7bb95aebabda92e8802b4c",
    "signature": "0x75289e1e223fcb32d1bd1073d1592a3d5d9da1cee38e19c8f90de870d5c1e25725e0d590c94f37afae33e46271bb6a18b5c3da5b8edf3038c0c425e8baddf8101b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}