{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "986621",
    "entityType": "User",
    "nonce": "0xdcbc307555f3473dde3e03125b27fb27009d6e33f5069f18f6003be0ad7577e4",
    "signature": "0xc1cdb6f89ca38b9b71ea2c8b47193b6f0b934b70e14ef7d96d8f20236892a98c11118a18c396d64be2239bdaf0d09870a1fd1d0b92649829ac8fedf890b4b0751c",
    "signer": "0x7a75a4f6Db403e120768B73C5e7dA9BD6eF0306E",
    "userId": "547641018"
  }
}