{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11440",
    "entityType": "User",
    "nonce": "0xd116c2d1dae7bcf3290465f79876e85415b9f5805e68a148f6419cc9ae9afcda",
    "signature": "0xa6323511a488278e65081a6300dfad76179d20e4d868cdebdf5a05b616b5667f56badae26164b1c8e53af9c7b81a93bfb4b93b4e4480ba26e97b33abcf6e078b1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}