{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x694b83fb1a9ef902af6e6d6e996056872db471a0c7673075d073c73040ea4cfa",
    "signature": "0x7c0c7a2fd249c49219a8bd0638731836fc8daa6a28eaeaeb3acd312efbe38c4213318d1d4428979870d48821c9913c9359896c715b188c6117128d4a9dcd80641b",
    "signer": "0x60B9057eF652D103BD7D66F68F81078E7DE68Dab",
    "userId": "710138589"
  }
}