{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf6e43b80580712ebdccf00ea9aad3b1de821ae43b7ce1ee43e008f73f0ca4f0a",
    "signature": "0x61c0f69f2e2284723e0c006b86d43aa50a7993fc7c5d86046caa21e24a374b7601163427be84f0a3353d34bebcc8fed159e6049f327ca0ae035735e6a64550ed1c",
    "signer": "0x02e56ea7E4d2331ffC84520B8F57F053465cE63D",
    "userId": "859334045"
  }
}