{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164216",
    "entityType": "User",
    "nonce": "0xa1244d9d3661ba0795137679a9e4c8a4c48f441da9e38528e8f441f35d57c53d",
    "signature": "0x0d5f6793625dc5759e20933e517f177f5a01eae4b78a037a05f3a25d18df4ac57cdbee334966008bd09a738b0060c4b0ffd018622840f9673b8b444e636db32f1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}