{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd3ea84ba223165352c251209d44e274134441bc7e8b60e3a0260db571e6ea05d",
    "signature": "0x2a58cab17af116c30606b7683c08090d8fce45ac4ff69074e591b62d74907434106f07a4ce769274e408955b30946c22540c36818af6eb669d444d83a5658b5d1c",
    "signer": "0xbdB8eA7Aa50C113b1755Ee2985da6D2DC957FE4A",
    "userId": "941711771"
  }
}