{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x277e9333b4e311c5f11ab1dd086411d480d8cb3a03badc970eb6cca932874da9",
    "signature": "0x2a563db033c5ddc84df169db39d221fff52aa98076450cf042ca2c7ef28a2dd0500d94fbf1c5bd9cbe7314006bb595023aca0ac6f09a0d8465d87a65892a433f1c",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}