{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239411",
    "entityType": "User",
    "nonce": "0x88142a0cda3db1c4e1235f815a3de2fef51e7f6eb002ba32da1a2331ee98f800",
    "signature": "0xa4787fc4984bd1e770b8c419c6a676bc02d385a6f0bd1fea4ca147203748164a242aa38ae50f644f94370359360b6669ccca0945c2a540b9d3c267118839cb581b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}