{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882969",
    "entityType": "User",
    "nonce": "0xbb8966e0e40675918f33100a6022403d2511d45b68dbda8c42959286fca17a0f",
    "signature": "0x0783c98bc62f3695336060b01b64f314efe4be207e417c55e0c6f68efcdcc8d05980edb8fd0457e186ef8bf95771e3a71d0ef3992b37922db3aa9f989f1de0821c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}