{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173435216",
    "entityType": "User",
    "nonce": "0xae4a903fa157abc7339be6adde476f724d8a37382c50c3b070bb5e96021ddf83",
    "signature": "0x6cd9211951b6e0f5361e2c5bcfeb45d06f5562097d55c1e7df4b2380d7ae550951fd158c99fa38399cdbd7878df4f900cb5f40284d5e4ddddad6ba34ac36dbe01b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}