{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x782cb67cced809f68452befb1232102e9f1939be2dc3af4089437158fd3c00f7",
    "signature": "0x837303dec276a1f5231b357c33ddbd93e9aeac53082be1cf58d089dc5df8c2095b8fd596da27853070fa0b5f9ec64b0b9e8d7d074a8aaac02c4f9cf569bbf3b21c",
    "signer": "0x362B4041F3aCaBc18c2Dc9DD38ED4FE8D51e31B3",
    "userId": "811405177"
  }
}