{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "186190",
    "entityType": "User",
    "nonce": "0x0ff894637eb86199c55aeb58f66b505704542c9118403a813238ce77720aee79",
    "signature": "0xf743f805698360de9195824196472c473d08de5491fad160a6ca9d64afc7efcf6303b992dc9d78c1f91958c59159d731ca27a6d53c6048e0a69548f1e617b9101b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}