{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18968",
    "entityType": "User",
    "nonce": "0x6b0291ff47668bed70c4b1fe0f666b5e159c4c30c00246c3f5a7cf036df23f6e",
    "signature": "0x4a898b0ef1e082f8f6ab8f5173011d557f0e064afbd5657242652065f8372c2b4d121da04471c15e816c15fc2679fca5711bd8b37cd3ee6fcdb5088d5f4492c91b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}