{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57493",
    "entityType": "User",
    "nonce": "0xee3bc1354737752ba3f3f79ad389f3fc927f6cf916ad449de4ae80a479f28b47",
    "signature": "0xd4ccc3846b2237f2fc11b5ea6c274c863ae462689ca875d0edfdaba98c8acc21727ecdd33305ff9afc340f4053828f6255d007cd3a0fe0dbec7f033f764d82b91b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}