{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "118620",
    "entityType": "User",
    "nonce": "0x0e512209fc1841423f8da59b9ac33ce21061c82aef667e848ea5e52dacb409a5",
    "signature": "0x5ff4c08748d9aa0c946784c0f5e5a0f378047a75fe390b730231ccfe439d45231257a74dc634fdc73445cc7c1db2ab5803a04fc45125fb1fa99d2fb5f7c6848c1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}