{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77481",
    "entityType": "User",
    "nonce": "0xddadf165d027dea91ebf5272763b09981b5b7a94443ee5c030a38067985617e8",
    "signature": "0x6e9f4228b6980b9049c5221a53042f583796903d8709bae4d944b770b015afb10699e5bc79894982b92bd1a0972da9c14930e238771b8edf79054f3ff9b43e491c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}