{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf6ef5816e60814ff91c64f4885ed9ff62629e199c168fc4474e7e8ea9cb6bc59",
    "signature": "0x0de2bc078730306f17fb6eec5cd6a8bc52c105adec873262fcadd0d7698cba840cb98cd6107d4b98862067bbffa3fa838bfca9b8968d70eefae791502d99463e1c",
    "signer": "0x6639311AeA573E13C6b0Ced6218b39Eb6F354d29",
    "userId": "246185809"
  }
}