{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28393",
    "entityType": "User",
    "nonce": "0x77d49f6975c729c22fe334cc7f226ff26e9eeb75bede43eb43c94fc55d262dd5",
    "signature": "0xfc15d41fce16ef6294094076a3cf81c98e67289ac19c166265ae58b89a325ff735cca5a14824d5aa7eeb822ac370dd330f2f4196013c209dabb492f3a2b66e531c",
    "signer": "0x3B0368217d442c4EB20f8A2FD118c0D1222D22be",
    "userId": "775617597"
  }
}