{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x750b118fedb1806c1c5849f0db9b4d4bb80c8aad562adfa943182193a686a98c",
    "signature": "0x83f51710ce5b000022dee7ebbf75d4810835f2ff1f219132c65650e66465de6d2eda252d70df7b56e5e5758833d4a16e0802dafe1b653355162ced7de4960dbd1c",
    "signer": "0x85c38463b4Fb936eC315485c2360b60B2012Cbe1",
    "userId": "581465865"
  }
}