{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "901788935",
    "entityType": "User",
    "nonce": "0x61994231a122815e8ef6ed527c8a41264a53ac45bc7ca4982879a34125054fdf",
    "signature": "0x0d7aaa2ce3519ffff43daf7b264f1aa81c02bc102cf89d43799ce0e14b4b7f86421ab2cb55f43181b769472c9d2d346f5ac97886cdddd921e7d7f3c74498cbf81b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}