{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x4df5d4300be392599ba98b151d0272bd208067c4e35b21bdf8d4094b95cb78ec",
    "signature": "0xd626c280e3a94b4ae178130588162d1de78c391eeb4fe2211d30c9d43be5dfb304961696b947d2697fe313248f0e2d83d460bea25b8a3fdf075d992db6a5c28d1b",
    "signer": "0xa0c0216b7895a5D5d1C6bA31e0c046Fa7dc5B88E",
    "userId": "252885271"
  }
}