{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "196653",
    "entityType": "User",
    "nonce": "0x37b6e09d90397203f32e43b247cc20c6f6e2529d2c4e5788ac301d64971fdf40",
    "signature": "0xfeaa8e801f9d06d860bc336a47b8dcc9e9cb2119028d38672eba70791bce8b211b0a50ea4195af5aab13d88a326f1cf6a5b98dab9f3c7aa59dfb9c524232fdef1b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}