{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x652336480dae778158f093782684be9c5b1798495632e4f35674ba8f4335ad39",
    "signature": "0xc60363588323a42916133c307a2e3a318e5e827ecec282d489b3396549ffa60a46dec133b6a5a3272434d2e0e065d90bcd39bad45ec045c68fd0750798f2cef91c",
    "signer": "0xA36b6996F1bFc2e88F6DCdabaBdA79e728014d4b",
    "userId": "867160093"
  }
}