{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf56b21a485c0a9487f651541ed102f3e567d367e35afbb7c93bf8c70db918a17",
    "signature": "0x1f1eb6600bc710fa8d8ed50f86a8b72b41b0b503fc12d501a0edc58a48a467330d51cd7f33a65588baa3e031f48104f970f1d79771d13cf729a0c65e427150ba1b",
    "signer": "0xbF5F7bB5d67D35B717469Be2f57eD4c2E70c02cB",
    "userId": "133693251"
  }
}