{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xa20e2345944d3d18e7d56faf0a6c6bc705487147c518034d01de080cdd5b7b51",
    "signature": "0x793daae38934407603cd252b41acbed6e26eb5ef9d0a5a14657ed0c44f18bea75de15822baf3126ffb2d5fe2d650f57a03668ad9e172de9380a6468a9ca447bf1b",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}