{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "636236864",
    "entityType": "User",
    "nonce": "0x51c95dc1004893e3ec107b5966ead670451f582ca24633098748b6ee9e9a0080",
    "signature": "0x8a5807031911c220e38d5c10ecadce8575844a17cf088ad89227f7303f0882671dbab5d8001c8219bc8bddf94e2fb40e9ca6430abf4db3fdf79c2210267a2bdf1c",
    "signer": "0x19EDB4c1a8740c323f6e57B80F3422C01875289e",
    "userId": "390804"
  }
}