{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8bb68d2e062c53a1ab77bd7a73c87e3a312b03d3676da1bd99fb3bfc813e3b7d",
    "signature": "0x08dc0ce9bf987da28b5630b4883c7afaa18e5da5a6fea39749e6a7511f0268b4784535df4a6ce929c30ce34b9c8c75d999a90dd3c00ec7155d9c8f75fb6f095e1b",
    "signer": "0x8700074A90b1Add14Fb38791e36835F07f5992D5",
    "userId": "875047146"
  }
}