{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe4e1e8417a6f322388b33505ec3d178e3a69cab0fc2e6955a6765ff8b379466f",
    "signature": "0x9665f6fc550206ea253a02e5a39b5b495dbb7014f2228bcc600f2dac053dfb9d2bb4bc2b2abac8cf04c28b6d3efe85aa5668dc035825e95f7f5a9b8d854ac01c1b",
    "signer": "0x3aD3db4d8dC1EEBDeEACb3251689908B2615311a",
    "userId": "978793146"
  }
}