{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51154",
    "entityType": "User",
    "nonce": "0xdd0c37d2322e4bfd80b168a07bf9b53e00c2149232bf7c301fed3ab6d0d53cee",
    "signature": "0x1a4e0c4c9440a55312e28abfae4cb8ad7eafa0f3a9e24408ab82bdfb2aab1ae80033e2d6c70a03bd56288f2080d3e0d1e863a1878367ee5b6534282c0321c3891b",
    "signer": "0xD4186490eA39e450cAe5e557A0739c6dD45Fd9Ff",
    "userId": "561643473"
  }
}