{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54988",
    "entityType": "User",
    "nonce": "0x89afa3b8312549ef4b96ffb2b875ab0e0fa3a369de8e2f43089a23239ebe27fd",
    "signature": "0xe7609e6438f0f9a0b36eba91a5325966aa08dc27c9e172263cb06db80aa0ee0a7c1968a65d3bc03fea72d9961270107d6829e42cc0f82e24ca8f9945afbd856b1c",
    "signer": "0xe6155D2c22b3045b54a0E8F2CD4Ad64DFBcC2853",
    "userId": "993304290"
  }
}