{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "894582993",
    "entityType": "User",
    "nonce": "0x5ffb04c8112e507d6987c4422817604cd2b86840360db5a3ab6db8fc416c06cb",
    "signature": "0x414557331fd93a6aca6345d88463af3ed5274991612e9e1af438527e1d39ce0624667a2f9f4eba8dbfa01454d947890b431a7812d27467bff5a7428d8906c9ae1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}