{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19227332",
    "entityType": "User",
    "nonce": "0x9864abd59c342838221217be325f4c5b8b4608d2ee92678a800b32d450eff776",
    "signature": "0x226fe069e4fee43627a03563748228f1a31128e619f2eaaa5e6317435bb6690938397603d2152525efc7330d007a2c685b0f20d108c4307e96ef382125fc407e1b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}