{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x59e36e434c4a5174204d6ee692cb690dc2f82af149ef07662d27daf6c6be920e",
    "signature": "0xecc78cafcb1b8c4bfb2524a2a742933a581a05e67fe186f6ca2755d68a3d7f181c19ce3fc0f150253470fe11e5948fb90b660b1c222698c18bf3caa14b63ba6d1c",
    "signer": "0x1b3c5DcA6B827498da1070c8D4EA3206DD3F708A",
    "userId": "755967702"
  }
}