{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341801",
    "entityType": "User",
    "nonce": "0x22fccdf18b0c225caadb7ab6bfd6d3acd5e2ad7323c11a4a7ae0f0153d02b3b6",
    "signature": "0x68e0cb2842cc09db6970539bffc9cf39021644e2714221f379175a4c5bdd304477c4c6b3997bfd5e6fe8792d04bb24847821f20c9735b6533c58f07b6e74b5731c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}