{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xce8692bd89feedf3dcc347cbd157997857f370e981cee5d75eb2e3839c0abeed",
    "signature": "0x307ba18b60f53c31ec46b51a0ee118a97310b2daae43f8f817c10394359e5cb85150e1eedadb645617eef507e5d7f572f5c7cd20bc1e65db843dbb31cd50ef721b",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}