{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943748539",
    "entityType": "User",
    "nonce": "0xa05d918b10aa3a76dcc639cd574d43e4924ac25a35a0b53e9ce886dfdc3973b4",
    "signature": "0x5e7c0a23b9ffc7707c6c1b940d329b74629b9fa7581a37c3a2f5c179f392b46f1337bfc9a716c0d8f6beb51cb9847b07693192d7c88e2bb38a6f2064cdfd4b7f1b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}