{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "970214396",
    "entityType": "User",
    "nonce": "0x5b310791d91403f73397b5e38f3be800cb89f1729791d59091a65c103775ab8c",
    "signature": "0x3bb1b54378d9a425e1d76f6310460e1fb97890cd37050085794e04517d6ef63b42f96fcc20aae7a340aadedaa9d80b871bc946e0e279381f46307a9a4494d08b1c",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}