{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148293",
    "entityType": "User",
    "nonce": "0xdb99fcf1fce6d5f58bdc946796fa3f8b10f11555ce8a828e5b04876eac5228f7",
    "signature": "0x3612224cd8db96a947fa68f53453927f5e11cd64559e0033a6790a73099ef80f4e0c9167f92dc4add955b423ae6d691e00e41e77104b0cf6259541cee158f3eb1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}