{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5d94290f8997b0123861a7a889a5042d8f0860d68e55d1a3a06722dba7e2de31",
    "signature": "0x955dee6d6790cad627cebaedff428c60f1796529ef828ce69a6cc55b021585472222775038694cbb708b3b2b0f5a752b6afdb1a94e68785b546e2198f375ef171b",
    "signer": "0x194AAE2F31A9C5a610e1Bb19454cCef7729a9C2d",
    "userId": "160547365"
  }
}