{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484365174",
    "entityType": "User",
    "nonce": "0x151786133cef2d4d408ec2b41309dec5b8794b2b64c787691e709aec24b678c3",
    "signature": "0x465df0ffbf3e3e8a7f8c3f4d2ad0de2bb858a58ac47da0be953317dbce6d3ed71c76a34fd116df6f33a1facc9b36e55706315720395b5be7543a4d95f9f8395c1b",
    "signer": "0x7cb3978D851aBbaD3373f09F31DF1ceA399d64B3",
    "userId": "860501393"
  }
}