{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xab14209c40d25b1b280fafbb7c36b56fc05ee81e17030294992ca88c7954cfb5",
    "signature": "0x7615736b1527e44992dcfc500391caac9960577835a2cc8ec060759e5b96740d051cf1325c6995f1ae6d41825632849be0b11b2e951b31c18cc5179c1522d86c1c",
    "signer": "0x5C82E373de4890D61996396fF6Fe06E1607ff0B2",
    "userId": "961962170"
  }
}