{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65930",
    "entityType": "User",
    "nonce": "0x1443431377a87992685734fa8d4eb232dcf10cff135bdee6f9f956a6d354ec80",
    "signature": "0xea33970a7c141a928db6d006972d4edfdcb1f66c24b094894664aec2298304fa631c98bf7e1141365b548c531ac6fb50fc0d5cf5c5c3b1a8d7eec4846529f47d1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}