{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1046d237fac57e98f22b2126fc346ef44f0e1450abf67d4d5609e7af28e91fec",
    "signature": "0xac40f9508466ee2b3867d688814a55ad63b26f95cb3a95a8d935df5afd2d25e678d1dbdffd1db08796ebaa9ae86f98c131b33fbee45434dabc4e3b84f0d7d3e31b",
    "signer": "0x829544e8682E5cdE9C6846B7497a279161A0C103",
    "userId": "140734835"
  }
}