{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143665",
    "entityType": "User",
    "nonce": "0xd52bed2f4a78aaf71a2e025e5cebe40c7302f4f78792a53f23380527bf2fdfff",
    "signature": "0x05350abbfb72907e0b05b1be8954e2a47259e64a1c2b0ce8aa37e255d2952d7979ec2a1bd9228f9c64c41823958265b09679c3cf894b3ac44105325691b1a0971b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}