{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x81ce78234861138dbfceea966b6e1127cd682bb53a9eb3a842c397e81fce6b86",
    "signature": "0xa1cf02e95a5aeda1097493ca7f8c782444d534414a74dfea7723ae7e5e62e0aa57647ecec98500fdb329c050132eade0414d1856fcdb147b2facb9212e8512171c",
    "signer": "0xF1ed2B95cE14963a5EF94E70979E123e2Dd9aeAa",
    "userId": "843902893"
  }
}