{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231799821",
    "entityType": "User",
    "nonce": "0x0ab5111f208329b75bf010a8fc5410ae165c3e5f862aef4f8dafb7338a5ee98f",
    "signature": "0x31c7121a4410057c138ddc6ca98c0c89f3a84bae24677b8b1ddee66a4e65a1194b2a320bf2384693c4e46107eb0d852b4c3b358ec4e9bb90dd4b9803525b1aa71c",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}