{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593392725",
    "entityType": "User",
    "nonce": "0x4f59307c4b52786e974e8b57cd910e1e148a9febcf523fc967f358de147a8da3",
    "signature": "0xb2c138da55f9f203c938b1c1d83a1ebe4236688e9f9863b244de477b862e366c699aaf6acd116e44cc7da2eac4f32ea523d3ff6b6eafc94df88b28f6931eb3111b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}