{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x161f2acce314af1496b3cd2888203e75fb55672d06df322f73dfe4c612b49026",
    "signature": "0x9de5286546bffe3cee6a16166f2820ef0c32854d73b1566cb4af82cd3ec2f66e63af8c5367b75826f3c5d0f3fbcc12ac034a8b4b945cd829716846223e349a3c1b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}