{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152331",
    "entityType": "User",
    "nonce": "0xc0ff7d8980dde7aa7419653a11b737f7253fa60e82760c715430d06638e3c781",
    "signature": "0x170104ecdc03e4c61425bec6575207ecaf926bee3ad7a7811cf24891ebaadddd39d94c49528bfcc07e4db1a85282a3e1dedceb8f95bbfa1ea8f0fb869460fb331b",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}