{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353157",
    "entityType": "User",
    "nonce": "0xe4d3e97f738bf4447c88ca6176b4ac54122cbf6c52e68475c917a0430e78244c",
    "signature": "0xd2a7b76e2c373b4a42604eb85adc692e4ccdba9451c094fb6cbbdbc1359c150e0ab9af548dc9debb8e2f444b8b6b4b480036f7821204df3dde1708d99313a6dc1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}