{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea2ad2c01d4cf66175fdc67d370ad5e69566c4339e6dacf773a056aad7314006",
    "signature": "0x4e601c2ee575664590f7fd45e82c1833d7c0be62916abdab74a498dc1fb6f5256810755b80839d53c1c4af3f4e9174e79ebf92393c6b0ba9149077b0bacc87cd1b",
    "signer": "0x81b1B45A33ac76924D6f674Fc7d0918AC3E9F9Ec",
    "userId": "845684964"
  }
}