{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeb29a3c09b976792933d6c1b5ea6949f9cbcb4507b89a0d83925d4ffe84b4ef7",
    "signature": "0x8acb798104db1661e062726133e3a65e61376a78bf6eb84d8479441f5ea1578b29ef33d8c731b6d36ed98544d2e6784a9aba34370dba2f5de0f4550a4b583d591c",
    "signer": "0x9Dfaa89f87091863C94c587AFfAaC80636181D07",
    "userId": "309882956"
  }
}