{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x426cbb8865fe7cca8e72d5f6f6a2b45ad4deca587c0aabfd5882e823d712e756",
    "signature": "0x2d61e5901132ec1b2a546047059c0df39ccfe21e919ba08b34a80d6511c9f2d7103f01d5affe4dc2f73bba5f250feb45bc540536b0ce53b4dc8dd79cc1958e431c",
    "signer": "0x55835e6019b5eC353c0B4081FbEfC20c7d8832D5",
    "userId": "481073098"
  }
}