{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152329",
    "entityType": "User",
    "nonce": "0xa382fa511e15108b48780a638587198f5bf96db720315de8a58f69a4f58c65f3",
    "signature": "0xd503076ad38550f5cb5b0450458e10dca7df7a2d44cd60784a71d99761f0b1064e75765fce80a89de1e2e21a8e66cb30cd743ed2c83cae6f02565e10bcc2dc6a1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}