{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe3e4f22627f376bb4214e9d5d74786c40d2444e26919f1464cecd18a7f35b918",
    "signature": "0x349334bdd1f1f2c48e6017ad80d2d72c7bf5e56a8219dfccb5bbd7bd77751b0d26081459ed553aaa0e93569f0024a2faf62137cc0abc56636e2473fb4fbe09a01c",
    "signer": "0x396fE9EC36fe6eCA89343a7611a98F28EdDADc79",
    "userId": "670818325"
  }
}