{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "809958659",
    "entityType": "User",
    "nonce": "0xfbc9b0987aee2593073b86f56cd60eb37ee55c00cb32279f4d85699120ddffab",
    "signature": "0x928621333dd8fcf35f24ed7cdcfb86a53c836e425d72fb5ef3954e0fbcae1f0d49504050c0e0e15e3c4c81b3019658ba72b33e92715c4291230ad635faedcee91b",
    "signer": "0x02B4d5531389E17effF879c0eA41e4dA46374c71",
    "userId": "117832850"
  }
}