{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8e2d363dd368f81977fe33162f86dca737da43dcc08a84eebec579e40481ad4d",
    "signature": "0xdcac9ecc1058c90f211c45c421e3abb538d45fe0ade513d5a5bb607ea540bb02231cbf08fc143821991e14c78fc463736ec67cc661f7e93c085590b9fbcb2b461c",
    "signer": "0xdac84BfCb05020e115a5aa145faB60439bd628d0",
    "userId": "174185230"
  }
}