{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319060",
    "entityType": "User",
    "nonce": "0x608435e22bc87681aadc47e4d9cc436b663aabfa1d9ddf3b2a8cf07d851c343a",
    "signature": "0x81decc9894e6e5c18a910142d643a9157840464a4e2758acc38c3c141032338b16b54dc97f2d14da364c2a7ef7dea52a16d406ef317d4145c968266596bcd06e1c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}