{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4b114108d22e0a42395558049c678b7cf8dda54ad8ca2bdfac5dd9c1a18045af",
    "signature": "0xe0198ee483e306d8791f2d245698fdff709d0eaf77a33d97c93c7fa58f01b2d7567cd2b0075957defda8d347c0ca40f4db337575624548e1f666fd317927c16b1b",
    "signer": "0x5556f3112F03a658Ff1522aFd09D44a9a8C51a2f",
    "userId": "156266332"
  }
}