{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89655",
    "entityType": "User",
    "nonce": "0x8f50ea491fc3e08f47b761f5fdd88f2154a6d008558acf7eb3037b4cbcfd9e83",
    "signature": "0x240549c3737ba07f79cab48ca711982ed939c8d528e3caa37b87b78a75ce5dc615d26ff7ddd2351aaa434e8aa23977942e93c0c9db9cb2413cdea020fe8dfe461c",
    "signer": "0xb8909c41963586dbBe3EbbAB4FC8F1f8E6970Ce2",
    "userId": "435332232"
  }
}