{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "824478223",
    "entityType": "User",
    "nonce": "0x175b5cfc9278a980e1bf8b6e99e8f05b9573aefe50e4145cdd6d31b1c16d6d08",
    "signature": "0x30b055b90b5fd137b50b28acf1d1704a3540388fea23efacbe1a9ae759d9daa2154153116e54760ff94d9ad76ede54d367117af7eb454814899933897389bd491c",
    "signer": "0xF1CE68Bb55af8179258987F2f915291419370CFd",
    "userId": "216389377"
  }
}