{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "817166777",
    "entityType": "User",
    "nonce": "0xda4723ff47968c3932832b256790a29bcf31c0d2205694e28a6ab1d6fb46d7f8",
    "signature": "0xd71507b7536b2d40451859e4df295652bd9472c812040c9992984d5db55de3281e4785841e1cf7605a534aecdbf91da433209e60a3809b207822affea7b36b4e1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}