{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147",
    "entityType": "User",
    "nonce": "0x4ca12f8af71ae4579787099d041e8f4c6bfe264e2bcf1402aac5201d9a4a106f",
    "signature": "0x1a92d2d2b1d8bd0e0d59589d4b64ba8a2543431986dc8b11a5145d812348c5785a4d8fb79c5e80dd5ade584c87df12e79ae62c62a8edddfae38aad4b9146eaed1c",
    "signer": "0xcc8164Efbbe4ed123B8689622b411c154496e66b",
    "userId": "60031"
  }
}