{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158645",
    "entityType": "User",
    "nonce": "0xa515e465cf0830450ea6b0c875ea145f3a132a12d7e58bfdfc19eb129c506af9",
    "signature": "0x334d02b3e762cbb2d02b88a3192f23998950428fcffb09775968531c00e3c2474599e0784f726060995e00c6ffa49a8cd9eab182f0c16692ca99eba66ac5f2931c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}