{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231089",
    "entityType": "User",
    "nonce": "0xe4eb15954e99f1662b262e1e0bf79463ed664b26503c685b966c8ad709009cb0",
    "signature": "0x26e40370ce859eb42baefdc35dad80c552a9853441e6046b8e15ca46f3a612a0627f9a24eb269d9ab4b857a2d7ffa9ef306ec030de1d092d5ddc34b98fa46e151c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}