{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18122",
    "entityType": "User",
    "nonce": "0x56249bee623c424e8b758f2658af57e91282e461234a187146d83318f1aa1eaa",
    "signature": "0x1d69c0d4c82c88cb0a4971c8cfb02cd01e549ab882bb3c030f41c1b9f615f57f119f9ec64f139558254790c868014cb0ab70b8e5567c8ec67735331594a138291b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}