{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "257465",
    "entityType": "User",
    "nonce": "0x1e1376cbfa9c58e28445d3a4c7909df3bd99507c39f9bd9da4617a78abe968a0",
    "signature": "0x5aa7ba3135dc6b0a4ff1e5e0541258f409fdf0592950afebca6a98f664cd4f6d1d531108e2ab3c4d344dc19ec12c75fd616e62622a10230f54df76c890394af31c",
    "signer": "0x07691D0C34E03020A13BE4B5a411B64CcFff5556",
    "userId": "9014"
  }
}