{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xb1756f9a7cf6def36cbc62f55d96f20e7c8a7f903ad56d886d72e6e63ec2a188",
    "signature": "0x2f39a3fd95de319eeb5aa9d00c004f5bafa6c63fadcbebbdf1e912490d48e1f21fc1e06ef853d69e50c3df476ae0dcacf2b6144ccf6c9c5f08896f6f3b47ba901c",
    "signer": "0x61759FD9d69b6C29FE84fc39eaB6C50Cf7dCd8FC",
    "userId": "366953361"
  }
}