{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4980",
    "entityType": "User",
    "nonce": "0x7d2048ad308e696efac090eca61c11a747039833ac028e1bf128fb65f674acab",
    "signature": "0xd3e1fb59b2303c1f2a02f172b464f4093be13e7d797c1fae87d5eff6fdb50a1a34b55652a55d1723cfe8b57bdef3034580614453e7498cdf36cff6b1f6e5a4e31c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}