{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15212",
    "entityType": "User",
    "nonce": "0xf4d296b2b73cd83ff0e0ecb7f5e19b946e4714771077cc03a0079c128b1df9da",
    "signature": "0xe1c91c984ffdf098ccef4940e95d93266d4fc5996e1f1c9432b282ec909001f90714653189b48af5211b26464b28aaf00b4887919c671d7dd6b28e9bfe6041511c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}