{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7815",
    "entityType": "User",
    "nonce": "0x54af1df6f4044ba01b6637f3ced96ebb225950cea29abd6b9fe007b2949a3469",
    "signature": "0xd5fceafb9faa91f4fd3d0b0e6fcd78db55794f45a13284f0d172b7029d9679313efd9967527db97ae99660458297ce004c6f5d966141d5b4829b04f2d8adc6c41b",
    "signer": "0x7a252808bd60a26fe5184c95eb104CfADdA8D4C1",
    "userId": "186415718"
  }
}