{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120199991",
    "entityType": "User",
    "nonce": "0x38571ef97df05d37f93326730d4cabb147b953a1d765843030733af0840a210c",
    "signature": "0x7619ad232be1f5d8e0a639ecd20502a94d7225eab79a07c1ff1812cd0c85e23d5e69a3974ab7baa05b0d1f8de37f66cc9002364f2be11175db5e2b6364bad6b91b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}