{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225872",
    "entityType": "User",
    "nonce": "0x4d79515782247462f8eaf246c0e9564353e2247ddcf1c6b066e3cbe1d8b82dee",
    "signature": "0xba60b2575daa3d30529ead04049073ee1c33f0df069b46ec81485e1b81346c79047639089cc16172e97d3c4ab5d052e35df8709a285ab0870d4fc03d758a80ac1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}